Gates 31569 Radiator Cap

OE Type Radiator Cap for Reliable Cooling Control

The Gates 31569 OE Type Radiator Cap is built for vehicles that require a threaded radiator cap with a 20 psi pressure rating. It is engineered to match OEM specifications in form, fit, and function, making it a direct replacement for a wide range of Buick, Chevrolet, GMC, Cadillac, Jeep, Ram, and Chrysler applications.

Gates radiator pressure caps use corrosion-resistant metal or high-quality plastic, depending on application, to support long service life and consistent pressure control. This OE Type Radiator Cap is a practical choice for drivers servicing cooling systems on models such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade.

Key Features

• Part number: 31569
• OE Type Radiator Cap with threaded design
• 20 psi pressure rating with SAE pressure range of 18-22 psi
• Closed coolant recovery system design
• Filler neck depth: 1.25 in (32 mm)
• Filler neck inside diameter: 1.15 in (29 mm)
• Filler neck outside diameter: 1.81 in (46 mm)
• Shell diameter: 2.56 in
• OE Performance rating for factory-style fit and function

Product Details

The Gates OE Type Radiator Cap 31569 is designed to maintain proper cooling system pressure, which helps the radiator and coolant recovery system operate as intended. By holding the specified pressure range, the cap supports stable coolant circulation and helps preserve the performance of the cooling system on fitment-specific vehicles. This part cross-references Four Seasons 33092 for the same application.

Common Cooling System Issues It Can Address

• Loss of radiator pressure from a worn or weak cap
• Coolant overflow or improper recovery in a closed system
• Pressure-related cooling system instability
• Fitment problems caused by an incorrect cap depth or neck diameter
• Replacement needs during radiator or cooling system service

Installation Notes

Verify the filler neck dimensions, cap depth, and pressure rating before installation. This threaded radiator cap is specified for closed coolant recovery systems and should be matched to the vehicle’s OE-style cooling system requirements. Confirm the radiator neck is clean and undamaged so the cap can seal correctly.

Fits 2019-2025 Chevrolet Silverado 1500, N/A; fits 2021-2026 Cadillac Escalade, N/A; fits 2019-2025 GMC Sierra 1500, N/A; fits 2018-2026 Buick Enclave, N/A; fits 2017-2026 Cadillac XT5, N/A.

Quality Assurance

Gates manufactures this radiator cap to meet or exceed OEM specifications in function, form, and fit. The construction is designed for corrosion resistance and accurate pressure control, supporting dependable cooling system service across confirmed applications.